It is quite well known that most metal concerts are not that environment friendly due to their immense amount of noise and huge fire shows. I have some solutions to these problems. I got my inspiration from the Paris Olympic flame. I propose the same illusion made up of clouds of mist and beams of light instead of the fire shows. Additionally, the towers used for this illusion can double as the tower for vertical wind turbines. These turbines would have three purposes. First, to generate electricity for the concert; second, some parts of the turbine blades would have special reflectors to scatter beam of light to create light show; third, some parts of the turbine blades would be covered by sound dampening material to reduce the sound pollution.
Finally, the backup electric generators would not be using diesel fuel, but fuel cells that operate with alcohol. It would suit well with the alcohol consumption during the concert.
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